Electrochemical Infilling of CuInSe2 within TiO2 Nanotube Layers and Subsequent Photoelectrochemical Studies. Issue 3 (8th February 2017)

• Record Type: Journal Article
• Authors: Das, Sayantan; Sopha, Hanna; Krbal, Milos; Zazpe, Raul; Podzemna, Veronika; Prikryl, Jan; Macak, Jan M.
• Is Part Of: ChemElectroChem. Volume 4:Issue 3(2017)
• Page Start: 495
• Page End: 499
• Publication Date: 2017-02-08
• Subjects: anodization -- heterostructures -- TiO2 nanotubes -- incident photon-to-electron conversion efficiency -- CuInSex; Electrochemistry -- Periodicals; 541.37
• DOI: 10.1002/celc.201600763
• Languages: English
• ISSNs: 2196-0216

Abstract

Abstract: Anodic self‐organized TiO2 nanotube layers (with different aspect ratios) were electrochemically infilled with CuInSe2 nanocrystals with the aim to prepare heterostructures with a photoelectrochemical response in the visible light. The resulting heterostructure assembly was confirmed by field‐emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), and X‐ray diffraction (XRD). High incident photon‐to‐electron conversion efficiency values exceeding 55% were obtained in the visible‐light region. The resulting heterostructures show promise as a candidate for solid‐state solar cells. Abstract : Filling the voids : Electrochemical infilling of CuInSe2 crystals within TiO2 nanotube layers of two different thicknesses is demonstrated in this work. The resulting heterostructure shows significant improvement of photo‐electrochemical response in UV and VIS light and opens promising pathway for all‐inorganic solar cells.